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01-05-2016 | Pediatric Body MRI

Body MR angiography in children: how we do it

Authors: Rajesh Krishnamurthy, LaDonna Malone, Karen Lyons, Pamela Ketwaroo, Nicholas Dodd, Daniel Ashton

Published in: Pediatric Radiology | Issue 6/2016

Abstract

Vascular pathology is ubiquitous in children. Common indications for angiographic imaging in the body include congenital anomalies, portal hypertension, assessing resectability of neoplasms, renovascular hypertension, vascular malformations, vasculitis, systemic vein thrombosis, and trauma. MR angiography, with or without the use of intravenous contrast agents, is therefore a mainstay in the repertoire of MR imaging in children. Pediatric contrast-enhanced MR angiography has benefited from several innovations in recent years, including improved hardware options like high-field-strength scanners and integrated high-density coil arrays, new sequences that combine parallel imaging, innovative k-space sampling and Dixon fat suppression with time-resolved imaging, new contrast agents with longer blood-pool residence time, and advanced post-processing solutions like image fusion. This article focuses on the principles of contrast-enhanced MR angiography of the body as it pertains to the physiologies and pathologies encountered in children. It also discusses tools to adapt the MR angiographic technique to the clinical indication, as well as pitfalls of post-processing and interpretation in commonly encountered vascular imaging scenarios in the pediatric body.

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Title: Body MR angiography in children: how we do it
Authors: Rajesh Krishnamurthy
LaDonna Malone
Karen Lyons
Pamela Ketwaroo
Nicholas Dodd
Daniel Ashton
Publication date: 01-05-2016
Publisher: Springer Berlin Heidelberg
Published in: Pediatric Radiology / Issue 6/2016
Print ISSN: 0301-0449
Electronic ISSN: 1432-1998
DOI: https://doi.org/10.1007/s00247-016-3614-y

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Body MR angiography in children: how we do it

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